Re: [PATCH v2 00/21] arm64: sunxi: Initial Allwinner H616 SoC support

[Icenowy Zheng]

在 2020-12-11星期五的 01:19 +0000，Andre Przywara写道：
> Hi,
> 
> this is the quite expanded second version of the support series for
> the
> Allwinner H616 SoC.
> Besides many fixes for the bugs discovered by the diligent reviewers
> (many thanks for that!) this version adds some patches to support
> some
> slightly changed devices, like the second EMAC and the AXP not having
> an interrupt.
> Also I added quite some DT binding doc patches.
> USB still does not work, but I include the patches anyway, hoping
> that
> someone can help spotting the issue.
> For a more detailed changelog see below.
> 
> Thanks!
> Andre
> 
> ==================
> This series gathers patches to support the Allwinner H616 SoC. This
> is
> a rather uninspired SoC (Quad-A53 with the usual peripherals), but
> allows for some cheap development boards and TV boxes, and supports
> up to 4GB of DRAM.
> 
> Various DT binding patches are sprinkled throughout the series, to
> add
> the new compatible names right before they are used.
> Patch 1/21 is the usual drive-by fix, discovered while staring at
> the H6 clock code.
> Patch 3 and 4 add pinctrl support, with the "-R" controller now being
> crippled down to two I2C pins only. If we grow tired of repeating
> this
> exercise for every new SoC variant, I am happy to revive my more
> versatile sunxi pinctrl driver effort from a few years back [1].
> Patch 6 and 7 add clock support. For the -R clock this is shared with
> the H6 code, as the clocks are identical, with the H616 just having
> fewer of them. The main clocks are different enough to warrant a
> separate
> file.
> Patch 08/21 is pulling a patch from Yangtao's A100 series, since we
> need
> the same fix for MMC support. This will probably be merged
> separately,
> I just include this here to provide a bootable solution.
> Patch 10 teaches the AXP MFD driver to get along without having an
> interrupt, as the H616 apparently does not have an NMI controller
> anymore.
> Patch 12 and 13 add some tweaks to the syscon and EMAC driver, to
> deal
> with the second EMAC clock used for the second Ethernet controller.
> Patches 14 and 15 *try* to add USB support. The same approach works
> with
> the very similar U-Boot PHY driver, but for some reason still fail in
> Linux. Maybe someone spots the issue and can help fixing it?

There's a judge currently checks for phy type A83T/H6. You may need to
add H616 there.

Or should we have a bool in the data struct to mark it? I think all
chips that need that is 28nm.

> 
> The remaining patches add DT bindings, which just add the new
> compatible
> string along with an existing name as a fallback string.
> Eventually we get the .dtsi for the SoC in patch 19, and the .dts for
> the OrangePi Zero2 board[2] in the last patch.
> 
> We have U-Boot and Trusted-Firmware support in a working state,
> booting
> via FEL and even TFTPing kernels work already [3][4].
> 
> Many thanks to Jernej for his tremendous help on this, also for the
> awesome input and help from the #linux-sunxi Freenode channel.
> 
> The whole series can also be found here:
> https://github.com/apritzel/linux/commits/h616-v2
> 
> Happy reviewing!
> 
> Cheers,
> Andre
> 
> [1] 
> https://patchwork.ozlabs.org/project/linux-gpio/cover/20171113012523.2328-1-andre.przywara@xxxxxxx/
> [2] https://linux-sunxi.org/Xunlong_Orange_Pi_Zero2
> [3] https://github.com/jernejsk/u-boot/commits/h616-v1
> [4] https://github.com/apritzel/arm-trusted-firmware/commits/h616-WIP
> 
> Changelog v1 .. v2:
> - pinctrl: adjust irq bank map to cover undocumented GPIO bank IRQs
> - use differing h_i2s0 pin output names
> - r-ccu: fix number of used clocks
> - ccu: remove PLL-PERIPHy(4X)
> - ccu: fix gpu1 divider range
> - ccu: fix usb-phy3 parent
> - ccu: add missing TV clocks
> - ccu: rework to CLK_OF_DECLARE style
> - ccu: enable output bit for PLL clocks
> - ccu: renumber clocks
> - .dtsi: drop sun50i-a64-system-control fallback
> - .dtsi: drop unknown SRAM regions
> - .dtsi: add more (undocumented) GPIO interrupts
> - .dtsi: fix I2C3 pin names
> - .dtsi: use a100-emmc fallback for MMC2
> - .dtsi: add second EMAC controller
> - .dtsi: use H3 MUSB controller fallback
> - .dtsi: fix frame size for USB PHY PMU registers
> - .dtsi: add USB0 PHY references
> - .dtsi: fix IR controller clock source
> - .dts: fix LED naming and swap pins
> - .dts: use 5V supply parent for USB supply
> - .dts: drop dummy IRQ for AXP
> - .dts: enable 3V3 header pin power rail
> - .dts: add SPI flash node
> - .dts: make USB-C port peripheral only
> - add IRQ-less AXP support
> - add two patches to support more than one EMAC clock
> - add patch to rework and extend USB PHY support
> - add DT binding documentation patches
> 
> Andre Przywara (18):
>   clk: sunxi-ng: h6: Fix clock divider range on some clocks
>   dt-bindings: pinctrl: Add Allwinner H616 compatible strings
>   pinctrl: sunxi: Add support for the Allwinner H616 pin controller
>   pinctrl: sunxi: Add support for the Allwinner H616-R pin controller
>   dt-bindings: clk: sunxi-ccu: Add compatible string for Allwinner
> H616
>   clk: sunxi-ng: Add support for the Allwinner H616 R-CCU
>   clk: sunxi-ng: Add support for the Allwinner H616 CCU
>   mfd: axp20x: Allow AXP chips without interrupt lines
>   dt-bindings: sram: sunxi-sram: Add H616 compatible string
>   soc: sunxi: sram: Add support for more than one EMAC clock
>   net: stmmac: dwmac-sun8i: Prepare for second EMAC clock register
>   phy: sun4i-usb: Rework "pmu_unk1" handling
>   phy: sun4i-usb: Add support for the H616 USB PHY
>   dt-bindings: watchdog: sun4i: Add H616 compatible string
>   dt-bindings: allwinner: Add H616 compatible strings
>   arm64: dts: allwinner: Add Allwinner H616 .dtsi file
>   dt-bindings: arm: sunxi: Add OrangePi Zero 2 binding
>   arm64: dts: allwinner: Add OrangePi Zero 2 .dts
> 
> Yangtao Li (3):
>   dt-bindings: mmc: sunxi: Add Allwinner A100 and H616 compatibles
>   mmc: sunxi: add support for A100 mmc controller
>   dt-bindings: watchdog: sun4i: Add A100 compatible
> 
>  .../devicetree/bindings/arm/sunxi.yaml        |    5 +
>  .../clock/allwinner,sun4i-a10-ccu.yaml        |    2 +
>  .../bindings/i2c/marvell,mv64xxx-i2c.yaml     |   21 +-
>  .../media/allwinner,sun4i-a10-ir.yaml         |   16 +-
>  .../bindings/mmc/allwinner,sun4i-a10-mmc.yaml |    8 +
>  .../pinctrl/allwinner,sun4i-a10-pinctrl.yaml  |    2 +
>  .../bindings/rtc/allwinner,sun6i-a31-rtc.yaml |    3 +
>  .../bindings/spi/allwinner,sun6i-a31-spi.yaml |    1 +
>  .../allwinner,sun4i-a10-system-control.yaml   |    1 +
>  .../watchdog/allwinner,sun4i-a10-wdt.yaml     |    9 +-
>  arch/arm64/boot/dts/allwinner/Makefile        |    1 +
>  .../allwinner/sun50i-h616-orangepi-zero2.dts  |  240 ++++
>  .../arm64/boot/dts/allwinner/sun50i-h616.dtsi |  715 ++++++++++
>  drivers/clk/sunxi-ng/Kconfig                  |    7 +-
>  drivers/clk/sunxi-ng/Makefile                 |    1 +
>  drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c        |   47 +-
>  drivers/clk/sunxi-ng/ccu-sun50i-h6-r.h        |    3 +-
>  drivers/clk/sunxi-ng/ccu-sun50i-h6.c          |    8 +-
>  drivers/clk/sunxi-ng/ccu-sun50i-h616.c        | 1150
> +++++++++++++++++
>  drivers/clk/sunxi-ng/ccu-sun50i-h616.h        |   56 +
>  drivers/mfd/axp20x.c                          |   17 +-
>  drivers/mmc/host/sunxi-mmc.c                  |   28 +-
>  .../net/ethernet/stmicro/stmmac/dwmac-sun8i.c |   12 +-
>  drivers/phy/allwinner/phy-sun4i-usb.c         |   39 +-
>  drivers/pinctrl/sunxi/Kconfig                 |   10 +
>  drivers/pinctrl/sunxi/Makefile                |    2 +
>  drivers/pinctrl/sunxi/pinctrl-sun50i-h616-r.c |   54 +
>  drivers/pinctrl/sunxi/pinctrl-sun50i-h616.c   |  548 ++++++++
>  drivers/soc/sunxi/sunxi_sram.c                |   31 +-
>  include/dt-bindings/clock/sun50i-h616-ccu.h   |  115 ++
>  include/dt-bindings/reset/sun50i-h616-ccu.h   |   70 +
>  31 files changed, 3151 insertions(+), 71 deletions(-)
>  create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616-
> orangepi-zero2.dts
>  create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
>  create mode 100644 drivers/clk/sunxi-ng/ccu-sun50i-h616.c
>  create mode 100644 drivers/clk/sunxi-ng/ccu-sun50i-h616.h
>  create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun50i-h616-r.c
>  create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun50i-h616.c
>  create mode 100644 include/dt-bindings/clock/sun50i-h616-ccu.h
>  create mode 100644 include/dt-bindings/reset/sun50i-h616-ccu.h
>